Newer potato varieties can be produced with less labor and expense than some of the old F. J. StevensonR. V. Akeley OriginalPaper Pages: 153 - 161
Nebraska Seed Improvement Program for Nebraska potatoes Marx KoehnkeJoe Shaughnessy OriginalPaper Pages: 161 - 166
The production of seed potatoes in the state of Sao Paulo Karl Silberschmidt OriginalPaper Pages: 166 - 173